Fix: [ bug #1374 ] Salaries module requires "Special costs" module to

htdocs/comm/action/contact.php

htdocs/comm/action/document.php

htdocs/comm/action/fiche.php

htdocs/comm/action/info.php

htdocs/compta/charges/index.php

htdocs/compta/salaries/fiche.php

htdocs/compta/salaries/index.php

htdocs/core/lib/security.lib.php

htdocs/core/menus/init_menu_auguria.sql

htdocs/core/menus/standard/eldy.lib.php

htdocs/core/modules/modSalaries.class.php